Gagaga Cowboy [AP05-EN002] Ultimate Rare XY109 you can send this card

you can send this card to the Graveyard to inflict 1000 damage to your opponent for each of your Standby Phases that have passed since this card was activated

" —Thomas Middleton

Set: Iconic Masters Type: Creature — Sphinx Rarity: Mythic Cost: {4}{U}{U} Flying

Set: Limited Edition Beta Type: Enchantment Rarity: Rare Cost: {2}{R}

or will you fall victim to treacherous traps and fiendish monsters in a forgotten dungeon

Gagaga Cowboy [AP05-EN002] Ultimate Rare XY109 you can send this cardSet: Astral Pack 5 Card type: Xyz Effect Monster Rarity: Ultimate Rare Attack: 1500 Defense: 2400 2 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card; apply this effect, depending on this card's battle position. Attack Position: If this card attacks an opponent's monster this turn, it gains 1000 ATK and the opponent's monster loses 500 ATK, during the Damage Step only. Defense Position: Inflict 800 damage to your opponent.